Home Journals Articles Updates About
CN
image
收藏切换
Improved Hybrid Modulation Strategy for MMC with Auxiliary Sub-modules
收藏切换
PDF
Guangyuan YANG1, Shijia ZHOU2, Guangqiang PENG1, Jiyang WU1, Qingming XIN2, Shukai XU2
Journal of Power Supply | 2024, 22(1) : 74 - 82
Less
收藏切换
Journal of Power Supply | 2024, 22(1): 74-82
• AC-DC Converters •
Improved Hybrid Modulation Strategy for MMC with Auxiliary Sub-modules
Full
Guangyuan YANG1, Shijia ZHOU2, Guangqiang PENG1, Jiyang WU1, Qingming XIN2, Shukai XU2
Affiliations
  • 1 Maintenance & Test Center China Southern Power Grid EHV Power Transmission Company Guangzhou 510663 China
  • 2 China Southern Power Grid Research Institute Co., Ltd. Guangzhou 510080 China
Published: 2024-01-30 doi: 10.13234/j.issn.2095-2805.2024.1.74
Outline
收藏切换

The traditional nearest level modulation (NLM) has advantages of simple control and low switching frequency. However, when the number of output levels is small, the harmonic distortion rate of output waveform from a modular multilevel converter(MMC) under the NLM modulation will be large. In this paper, a full-bridge auxiliary sub-module is added to each arm of the traditional three-phase six-leg MMC topology, and the capacitance voltage of the auxiliary sub-module is half of that of the half-bridge sub-module. Aimed at this MMC topology, an improved hybrid modulation strategy is proposed, which can realize the balance control of half-bridge and auxiliary sub-module, reduce the harmonic distortion rate of MMC AC-side output current, and reduce the switching frequency and system loss of the full-bridge sub-module. A detailed simulation model is built in MATLAB/Simulink, and simulation results verify the effectiveness of the proposed MMC topology and the improved hybrid modulation strategy.

Modular multilevel converter (MMC)  /  hybrid modulation  /  balance control  /  frequency reduction control
Guangyuan YANG, Shijia ZHOU, Guangqiang PENG, Jiyang WU, Qingming XIN, Shukai XU. Improved Hybrid Modulation Strategy for MMC with Auxiliary Sub-modules[J]. Journal of Power Supply, 2024 , 22 (1) : 74 -82 . DOI: 10.13234/j.issn.2095-2805.2024.1.74
Funding
Less
  • Science and Technology Projects of China Southern Power Grid(ZBKJXM20180560)
  • National Natural Science Foundation of China(51977070)
Appendix
Less
Year 2024 volume 22 Issue 1
PDF
330
131
Cite this Article
BibTeX
Article Info
doi: 10.13234/j.issn.2095-2805.2024.1.74
  • Receive Date：2021-01-13
  • Online Date：2025-07-21
  • Published：2024-01-30
Article Data
Affiliations
History
  • Received：2021-01-13
  • Revised：2021-02-28
  • Accepted：2021-03-30
Funding
Science and Technology Projects of China Southern Power Grid(ZBKJXM20180560)
National Natural Science Foundation of China(51977070)
Affiliations
    1 Maintenance & Test Center China Southern Power Grid EHV Power Transmission Company Guangzhou 510663 China
    2 China Southern Power Grid Research Institute Co., Ltd. Guangzhou 510080 China
References
Share
https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2024.1.74
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House